I'll take those into consideration but don't expect me to get it right in case you happen to notice my future posts. :P
It has something to do with trial and error and not being able to get regular constructive feedbacks. I will do some trial runs on your advice and hope I'll get better grasp at the values.
No prob, just trying to help out, take your time, I studied illustration from my age of 16, now I'm 31 and still learning :D Takes a lot of time but, the results get better :)